2008 TOYOTA AVALON horn

4
Maintenance and care
347
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
FuseAmpereCircuit
8ALT 140 A
(Limited
grade)120 A
(XL, XLS grade) Charging system, RR DEF, ABS/
VSC No.2, HEATER, ABS/VSC
No.1, RDI FAN, WASHER,

S-HORN
9 STOP No.3 7.5 A Electronic controlled transmission
system, multiport fuel injection
system/sequential multiport fuel
injection system
10 INJ 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
11 AM2 7.5 A Starter system
12 DOOR No.1 25 A Multiplex communication system
13 ALT-S 7.5 A Charging system
14 ETCS 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
15 IG2 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, electronic controlled
transmission system
16 TURN/HAZ 15 A Turn signal lights
17 AMP 30 A Audio system
18 FEI No.3 7.5 A Smart key system, electronic con-
trolled transmission system, immo-
bilizer system
19 STR LOCK 25 A Steering lock system
20 STOP No.1 15 A Multiplex communication system

348 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
FuseAmpereCircuit
21 EFI No.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, fuel pump
22 HORN 10 A Horn
23 HEAD LH UPR 15 A Left-hand headlight (high beam)
24 HEAD RH UPR 15 A Right-hand headlight (high beam)
25 A/F 25 A Air fuel ratio sensor
26 WASHER 20 A Windshield washer
27 S-HORN 7.5 A Horn
28 DOME 7.5 A Gauges and meters, clock, front
personal lights, door courtesy
lights, garage door opener, rear
personal lights, trunk light
29 ECU-B 10 A Center display, multiplex

communication system
30 RAD No.1 15 A Audio system, center display,

navigation system
31 EFI No.2 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
32 STOP No.2 7.5 A Stop lights, high mounted

stoplight, vehicle stability control
system, anti-lock brake system
33 RADAR CC 7.5 A Vehicle stability control system
34 HEAD RH LWR 15 A Right-hand headlight (low beam)
35 HEAD LH LWR 15 A Left-hand headlight (low beam)

5
When trouble arises
391
5-2. Steps to take in an emergency
AVALON_U_(L/O_0802)
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed (
P. 122, P. 126), consider each of the following
points.
■ The engine will not start even when the starter motor oper-
ates normally
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank. 
Add fuel to the vehicle.
● The engine may be flooded. 
Try to restart the engine once more following correct starting
procedures. ( P. 122)
● There may be a malfunction in the engine immobilizer system.
(  P. 7 5 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume
One of the following may be the cause of the problem.
●The battery may be discharged. ( P. 397)
● The battery terminal connec tions may be loose or corroded.

392 5-2. Steps to take in an emergency
AVALON_U_(L/O_0802)
Emergency start function (vehicles with smart key system)When the engine does not start, th e following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally.
Set the parking brake.
Shift the shift lever to “P”.
Set the “ENGINE START STOP” switch to the ACC mode.
Push and hold the “ENGINE START STOP” switch about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
■ The starter motor does not turn over (vehicles with smart
key system).
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine. 
(  P. 122)
■ The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 397)
● There may be a malfunction in the steering lock system (vehi-
cles with smart key system).
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4

450
AVALON_U_(L/O_0802)
What to do if...
What to do if...
A tire puncturesP. 382If you have a flat tire
The engine does not start
P. 7 5Engine immobilizer system
P. 391If the engine will not start
P. 397If the battery is discharged
The shift lever cannot be 
moved outP. 393If the shift lever cannot be shifted 
from “P”
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming 
from under the hood
P. 401If your vehicle overheats
The key is lostP. 394If you lose your keys
The battery runs outP. 397If the battery is discharged
The doors cannot be lockedP. 3 9Doors
The horn begins to soundP. 7 7Alarm
The vehicle is stuck in mud
or sandP. 404If the vehicle becomes stuck